Granted Patent
Utility
US 6,583,603 · App. 10/071,052
Back-up battery management apparatus and method for charging and testing battery cells in a string of battery cells
Inventor:
Norman C. Baldwin
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Feb 8, 2002
Inventor
Norman C. Baldwin
Assignee (at issue)
Peco II, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.